In:
Journal of the Fisheries Research Board of Canada, Canadian Science Publishing, Vol. 34, No. 3 ( 1977-03-01), p. 341-346
Abstract:
The upstream orientation and frequency of upstream movement of prespawning common shiners, Notropis cornutus, in response to a water current simulated by moving a striped background past the fish were observed at three temperatures (10, 15, 20 °C) and two photoperiods (12L: 12D and 16L: 8D). The greatest frequency of upstream movement was induced by a combination of spring day lengths and warm water temperatures. Further increases in the frequency of upstream movement followed immediate 5 °C increases in water temperature. Neither temperature nor photoperiod had a major effect on the frequency of upstream orientation. The significance of environmental regulation of rheotropism as a mechanism of upstream migration is discussed.
Type of Medium:
Online Resource
ISSN:
0015-296X
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
1977
detail.hit.zdb_id:
3036-3
